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271385045 = 5291871621
BaseRepresentation
bin10000001011010…
…000000111010101
3200220122210021222
4100023100013111
51023433310140
642532420125
76503510021
oct2013200725
9626583258
10271385045
1112a20a668
1276a77645
13442bc389
1428085381
1518c5a5b5
hex102d01d5

271385045 has 8 divisors (see below), whose sum is σ = 336891960. Its totient is φ = 209621440.

The previous prime is 271385011. The next prime is 271385053. The reversal of 271385045 is 540583172.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 91204 + 271293841 = 302^2 + 16471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 271385045 - 214 = 271368661 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 271384996 and 271385014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 935666 + ... + 935955.

It is an arithmetic number, because the mean of its divisors is an integer number (42111495).

Almost surely, 2271385045 is an apocalyptic number.

It is an amenable number.

271385045 is a deficient number, since it is larger than the sum of its proper divisors (65506915).

271385045 is a wasteful number, since it uses less digits than its factorization.

271385045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871655.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 271385045 is about 16473.7683909906. The cubic root of 271385045 is about 647.4337037016.

The spelling of 271385045 in words is "two hundred seventy-one million, three hundred eighty-five thousand, forty-five".

Divisors: 1 5 29 145 1871621 9358105 54277009 271385045